About This Place
New Boston is a city in Mercer County, Illinois, United States. The population was 632 at the 2000 census.
New Boston is located at 41Â°10â²10â³N 90Â°59â²48â³W / 41.16944Â°N 90.99667Â°W / 41.16944; -90.99667 (41.169570, -90.996709).
According to the United States Census Bureau, the city has a total area of 1.4 square miles (3.6 kmÂ²), of which, 0.9 square miles (2.4 kmÂ²) of it is land and 0.4 square miles (1.2 kmÂ²) of it (32.37%) is water.